搜索结果: 1-8 共查到“数学 acoustic”相关记录8条 . 查询时间(0.026 秒)
Mobile Interaction with Remote Worlds:The Acoustic Periscope
Virtual Reality Multi-Modal Interaction PDA Ubiquitous Computing Mobile Interaction Smart User Interface
2015/9/29
Strictly speaking, a periscope is an optical device that allows one to view and navigate the external environment.The acoustic periscope is a metaphor for mobile interaction that transparently exploit...
A FAST DIRECTIONAL ALGORITHM FOR HIGH FREQUENCY ACOUSTIC SCATTERING IN TWO DIMENSIONS
N-body problems Helmholtz equation oscillatory kernels fast multipole methods multidirectional computation multiscale methods
2015/7/14
This paper is concerned with fast solution of high frequency acoustic scattering problems in two dimensions. We introduce a directional multiscale algorithm for the N-body problem of the two dimension...
FAST METHOD FOR HIGH-FREQUENCY ACOUSTIC SCATTERING FROM RANDOM SCATTERERS
acoustic scattering random domains uncertainty quantification boundary integral equations fast algorithms quasi–Monte Carlo methods
2015/7/14
This paper is concerned with the uncertainty quantification of high-frequency acoustic scattering from objects with random shape in two-dimensional space. Several new methods are introduced to efficie...
Lowrank finite-differences and lowrank Fourier finite-differences for seismic wave extrapolation in the acoustic approximation
Numerical solutions Body waves Seismic anisotropy Computational seismology Wave propagation Acoustic properties
2015/7/14
We introduce a novel finite-difference (FD) approach for seismic wave extrapolation in time.We derive the coefficients of the finite-difference operator from a lowrank approximation of the space-waven...
Convergence analysis of a multigrid algorithm for the acoustic single layer equation
Convergence analysis multigrid algorithm acoustic single layer equation
2012/2/29
We present and analyze a multigrid algorithm for the acoustic single layer equation in two dimensions. The boundary element formulation of the equation is based on piecewise constant test functions an...
Magnetodynamic stability of acoustic streaming peristaltic flows in microchannels
peristaltic microchannels magnetodynamic
2010/9/21
We study the magneto dynamic stability of acoustic streaming peristaltic flows of fluids induced by small amplitude surface acoustic wave propagation along the walls of a confined parallel plane micro...
Dynamical energy analysis for built-up acoustic systems at high frequencies
Dynamical energy analysis built-up acoustic systems high frequencies
2010/12/16
Standard methods for describing the intensity distribution of mechanical and acoustic wave fields in the high frequency asymptotic limit are often based on flow transport equations.
Numerical computation of the eigenstructure of cylindrical acoustic waveguides with heated (or cooled) walls
acoustic waveguides temperature gradient
2010/9/13
A perturbation procedure for the modes and cut-off frequencies of cylindrical acoustic waveguides of arbitrary cross-section with a small temperature gradient along the walls was presented in [1, 2]. ...